*/*: update NGINX JavaScript 0.7.6 -> 0.7.7

Bump PORTREVISION for www/nginx-devel.

<ChangeLog>

nginx modules:

*) Feature: the number of nginx configuration contexts where

js directives can be specified is extended.

HTTP: js_import, js_path, js_set and js_var are allowed
in server and location contexts. js_content, js_body_filter
and js_header_filter are allowed in 'if' context.

Stream: js_import, js_path, js_set and js_var are allowed
in server context.

*) Feature: added r.internal property.

*) Bugfix: fixed reading response body in fetch API.

*) Bugfix: fixed "js_fetch_timeout" in stream module.

*) Bugfix: fixed socket leak with 0 fetch timeout.

Core:

*) Feature: extended "fs" module. Added fs.openSync(),

fs.promises.open(), fs.fstatSync(), fs.readSync(),
fs.writeSync().

The following properties of FileHandle are implemented:
fd, read(), stat(), write(), close().

*) Bugfix: fixed parseInt(), parseFloat(), Symbol.for()

with no arguments.

</ChangeLog>